Inherent variability of heat consumption in residential buildings

Juodis, Egidijus; Jaraminienė, Eglė; Dudkiewicz, Edyta

doi:10.1016/j.enbuild.2009.06.007

Cited by 39 publications

(18 citation statements)

References 3 publications

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“…The impact of poorly insulated 1960s buildings on the building stock energy consumption was amplified by the large boom in construction in when the housing stock more than doubled. A study conducted in Vilnius showed that relative heat consumption data in the prefabricated concrete large-panel apartment buildings vary more in the 1960s than in the 1970s, which indicates an increase in the quality of construction works as designing and building crews gained more experience (Juodis et al 2009). Retrofitting of the existing housing stock is crucial as the environmental impact from new buildings is negligible compared to the impact from existing buildings (Uihlein, Eder 2010).…”

Section: Introductionmentioning

confidence: 98%

Case-Study Analysis of Concrete Large-Panel Apartment Building at Pre- And Post Low-Budget Energy-Renovation

Kuusk

Kalamees

Link

et al. 2016

Journal of Civil Engineering and Management

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The paper presents a case study analysis of low-budget renovation of a typical concrete large-panel apartment building. Focus is on the measurements and analyses of energy consumption, indoor climate, CO 2 concentration, air leakage rate, thermal transmittance of thermal bridges, and thermal transmittance of the building envelope before and after the renovation. Results indicate that the renovation project was generally successful, with delivered energy need decreasing by 40% and heating energy need decreasing by 50%. However, some key problems need to be solved to achieve full energy efficiency potential of the renovation works. Those critical problems are the performance (thermal comfort, heat recovery) of ventilation systems, thermal bridges of external wall/window jamb and economic viability. Currently, a major renovation is not economically viable, therefore financial assistance to the apartment owners' associations is required to encourage them to undertake major renovations.

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Section: Introductionmentioning

confidence: 98%

Case-Study Analysis of Concrete Large-Panel Apartment Building at Pre- And Post Low-Budget Energy-Renovation

Kuusk

Kalamees

Link

et al. 2016

Journal of Civil Engineering and Management

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“…There are a large number of variables that dictate the heat energy consumption of a building. Due to the number of variables, sufficiently reliable results may only be obtained if a large database is at the disposal to those concerned [3].…”

Section: Qsmentioning

confidence: 99%

A Simplified Procedure for Sizing Solar Thermal Systems; Based on National Assessment Methods in the UK and Ireland

2014

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Solar heating systems have the potential to be an efficient renewable energy technology, provided they are sized correctly. Sizing a solar thermal system for domestic applications does not warrant the cost of a simulation. As a result simplified sizing procedures are required. The size of a system depends on a number of variables including the efficiency of the collector itself, the hot water demand and the solar radiation at a given location. Domestic Hot Water (DHW) demand varies with time and is assessed using a multi-parameter detailed model. Secondly, the national energy evaluation methodologies are evaluated from the perspective of solar thermal system sizing. Based on the assessment of the standards, limitations in the evaluation method for solar thermal systems are outlined and an adapted method, specific to the sizing of solar thermal systems, is proposed. The methodology is presented for two common dwelling scenarios. Results from this showed that it is difficult to achieve a high solar fraction given practical sizes of system infrastructure (storage tanks) for standard domestic properties. However, solar thermal systems can significantly offset energy loads due associated DHW consumption, particularly when sized appropriately. The presented methodology is valuable for simple solar system design and also for the quick comparison of salient criteria. BackgroundThe IEA [1] report that over one third of the final energy consumption in Europe can be associated to buildings, more than both transport and industry, with thermal conditioning accounting for the largest portion of operational

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“…These elements can influence the choice of heating and cooling systems used depending on the season. Only comprehensive assessment of elements that are responsible for heat losses can greatly reduce related costs, especially in renovated buildings (Juodis et al 2009;Ginevicius et al 2008).…”

Section: Effective Selection Of Building Envelope Insulation Alternatmentioning

confidence: 99%

Lithuanian Case Study of Masonry Buildings From the Soviet Period

Brauers

Kračka

Zavadskas

2012

Journal of Civil Engineering and Management

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This paper presents the process of effective selection of building elements for renovation important for energy saving in buildings. A large part of energy is lost in non-effective buildings. Therefore, in renovation of buildings, it is important to select effective structural improvements. Building insulation could not only save energy but also time, money and materials, which means that different objectives expressed in different units have to be fulfilled. Although different methods exist for the application of Multi Objective Optimisation, MULTIMOORA, which is composed of three submethods -Ratio System, Reference Point Method that uses ratios from the ratio system, and the Full Multiplicative Form -was preferred. Consequently, different solutions for building envelope renovation were ranked by MULTIMOORA as applied for masonry buildings from the Soviet period.

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Inherent variability of heat consumption in residential buildings

Cited by 39 publications

References 3 publications

Case-Study Analysis of Concrete Large-Panel Apartment Building at Pre- And Post Low-Budget Energy-Renovation

Case-Study Analysis of Concrete Large-Panel Apartment Building at Pre- And Post Low-Budget Energy-Renovation

A Simplified Procedure for Sizing Solar Thermal Systems; Based on National Assessment Methods in the UK and Ireland

Lithuanian Case Study of Masonry Buildings From the Soviet Period

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